So i wanna upgrade my pulley and im sticking with all motor. I can buy 3 different pulleys and install at once? or only 1 pulley?

 

you can get three nst pullys. the 20% underdrive crank pully, the 20% overdrive alternator pully (maintain stock voltage) and a water pully lite. you will need a new serpentine belt for this.

if you were to get a supercharger, you would be recommended to stick to stock size pullys. just get lite weight crank pully (stock size one) light weight water pully, and 9 psi supercharger pully.

pullys have no effect on turbos because turbos are driven by exhaust, not crank speeds.